# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1297776646 -10800
# Node ID f91447c430b6a0471ba800de6033addd32cb1659
# Parent fe16437c03fefa216fe8a44c8fdf75f10be486bd
Drop incorrect special case for return 204.

The special case in question leads to replies without body in
configuration like

location / { error_page 404 /zero; return 404; }
location /zero { return 204; }

while replies with empty body are expected per protocol specs.

Correct one will look like

if (status == NGX_HTTP_NO_CONTENT) {

rc = ngx_http_send_header(r);

if (rc == NGX_ERROR || r->header_only) {
return rc;
}

return ngx_http_send_special(r, NGX_HTTP_LAST);
}

though it looks like it's better to drop this special case at all.

diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -1768,11 +1768,6 @@ ngx_http_send_response(ngx_http_request_

r->headers_out.status = status;

- if (status == NGX_HTTP_NO_CONTENT) {
- r->header_only = 1;
- return ngx_http_send_header(r);
- }
-
if (ngx_http_complex_value(r, cv, &val) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}

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